Security restrictions bypass in OpenShift Container Platform



Published: 2021-05-25
Risk Low
Patch available YES
Number of vulnerabilities 1
CVE-ID CVE-2021-30465
CWE-ID CWE-254
Exploitation vector Local network
Public exploit N/A
Vulnerable software
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runc (Red Hat package)
Operating systems & Components / Operating system package or component

openshift-kuryr (Red Hat package)
Operating systems & Components / Operating system package or component

openshift (Red Hat package)
Operating systems & Components / Operating system package or component

jenkins (Red Hat package)
Operating systems & Components / Operating system package or component

Red Hat OpenShift Container Platform
Client/Desktop applications / Software for system administration

Vendor Red Hat Inc.

Security Bulletin

This security bulletin contains one low risk vulnerability.

1) Security features bypass

EUVDB-ID: #VU53399

Risk: Low

CVSSv3.1: 6.6 [CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:C/C:H/I:L/A:N/E:U/RL:O/RC:C]

CVE-ID: CVE-2021-30465

CWE-ID: CWE-254 - Security Features

Exploit availability: No

Description

The vulnerability allows a remote attacker to compromise the target system.

The vulnerability exists due to the security features bypass issue. A remote authenticated attacker on the local network can perform a symlink exchange attack and host filesystem being bind-mounted into the container.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

runc (Red Hat package): 1.0.0-1.rc2.el7, 1.0.0-24.rc4.dev.gitc6e4a1e.el7, 1.0.0-59.dev.git2abd837.el7, 1.0.0-61.rc8.rhaos4.2.git3cbe540.el8, 1.0.0-62.rc8.rhaos4.1.git3cbe540.el8, 1.0.0-63.rc8.el8, 1.0.0-63.rc8.rhaos4.1.git3cbe540.el8_0, 1.0.0-63.rc10.rhaos4.2.gitdc9208a.el8, 1.0.0-65.rc10.rhaos4.3.el8, 1.0.0-66.rc8.el7_7, 1.0.0-66.rc10.rhaos4.3.el7_8, 1.0.0-67.rc10.el7_8, 1.0.0-72.rhaos4.5.giteadfc6b.el8, 1.0.0-82.rhaos4.6.git086e841.el7, 1.0.0-82.rhaos4.6.git086e841.el8, 1.0.0-95.rhaos4.8.gitcd80260.el7, 1.0.0-95.rhaos4.8.gitcd80260.el8

openshift-kuryr (Red Hat package): 4.7.0-202103171728.p0.git.2502.8383c08.el8, 4.7.0-202104250659.p0.git.d49acc4.el8, 4.7.0-202105111743.p0.git.36c2cdd.el8

openshift (Red Hat package): 4.7.0-202103181538.p0.git.97109.7576cdc.el7, 4.7.0-202103181538.p0.git.97109.7576cdc.el8, 4.7.0-202104090228.p0.git.97111.77863f8.el7, 4.7.0-202104090228.p0.git.97111.77863f8.el8, 4.7.0-202104250659.p0.git.7d0a2b2.el7, 4.7.0-202104250659.p0.git.7d0a2b2.el8, 4.7.0-202105111743.p0.git.75370d3.el7, 4.7.0-202105111743.p0.git.75370d3.el8

jenkins (Red Hat package): 2.277.3.1620393611-1.el8

Red Hat OpenShift Container Platform: 4.7.0, 4.7.1, 4.7.2, 4.7.3, 4.7.4, 4.7.5, 4.7.6, 4.7.7, 4.7.8, 4.7.9, 4.7.11

CPE2.3 External links

http://access.redhat.com/errata/RHSA-2021:1562

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote authenticated user via the local network (LAN).

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.



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